DOVER — A 20-year-old Barrington man has been indicted on nine counts of possessing photographs of child sexual abuse.

Brian Tilton was indicted on the felony charges by a Strafford County grand jury in November.

The charges are class A felonies, and each carries a possible jail sentence of seven and a half to 15 years, according to the indictments.

Tilton was allegedly in possession of digital images showing young girls either nude or engaged in sexual acts, according to court documents. One allegedly showed two young girls being abused by two adults. Police claim Tilton had possession of the photographs in Barrington on Sept. 15, 2012.

Police found the images on Tilton's home computer, Strafford County Attorney Tom Velardi said Tuesday. Velardi declined to comment on how the investigation started, citing the recent nature of the charges. He also declined to comment on whether Tilton has a criminal history.

"The child sex abuse industry is a large one, and it's worldwide, and images unfortunately are available through a couple clicks of a mouse for anyone who is looking for them," Velardi said. "Typically the children in the images are not known to the person who is possessing the images."

The case was investigated jointly by the Barrington Police Department and the New Hampshire Department of Corrections, Velardi said.